[v2,19/25] PCI: of: Add inbound resource parsing to helpers

Message ID	20191016200647.32050-20-robh@kernel.org (mailing list archive)
State	Superseded
Delegated to:	Geert Uytterhoeven
Headers	show Return-Path: <SRS0=RTEs=YJ=vger.kernel.org=linux-renesas-soc-owner@kernel.org> From: Rob Herring <robh@kernel.org> To: Andrew Murray <andrew.murray@arm.com>, Bjorn Helgaas <bhelgaas@google.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, Gustavo Pimentel <gustavo.pimentel@synopsys.com>, Heiko Stuebner <heiko@sntech.de>, Hou Zhiqiang <Zhiqiang.Hou@nxp.com>, Jingoo Han <jingoohan1@gmail.com>, Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>, Ley Foon Tan <lftan@altera.com>, Linus Walleij <linus.walleij@linaro.org>, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Matthias Brugger <matthias.bgg@gmail.com>, Michal Simek <michal.simek@xilinx.com>, Ray Jui <rjui@broadcom.com>, rfi@lists.rocketboards.org, Ryder Lee <ryder.lee@mediatek.com>, Scott Branden <sbranden@broadcom.com>, Shawn Lin <shawn.lin@rock-chips.com>, Simon Horman <horms@verge.net.au>, Srinath Mannam <srinath.mannam@broadcom.com>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, Toan Le <toan@os.amperecomputing.com>, Tom Joseph <tjoseph@cadence.com>, Will Deacon <will@kernel.org> Subject: [PATCH v2 19/25] PCI: of: Add inbound resource parsing to helpers Date: Wed, 16 Oct 2019 15:06:41 -0500 Message-Id: <20191016200647.32050-20-robh@kernel.org> In-Reply-To: <20191016200647.32050-1-robh@kernel.org> References: <20191016200647.32050-1-robh@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk
Series	PCI host resource consolidation \| expand [v2,00/25] PCI host resource consolidation [v2,01/25] resource: Add a resource_list_get_entry_of_type helper [v2,02/25] PCI: Export pci_parse_request_of_pci_ranges() [v2,03/25] PCI: aardvark: Use pci_parse_request_of_pci_ranges() [v2,04/25] PCI: altera: Use pci_parse_request_of_pci_ranges() [v2,05/25] PCI: dwc: Use pci_parse_request_of_pci_ranges() [v2,06/25] PCI: faraday: Use pci_parse_request_of_pci_ranges [v2,07/25] PCI: iproc: Use pci_parse_request_of_pci_ranges() [v2,08/25] PCI: mediatek: Use pci_parse_request_of_pci_ranges() [v2,09/25] PCI: mobiveil: Use pci_parse_request_of_pci_ranges() [v2,10/25] PCI: rockchip: Use pci_parse_request_of_pci_ranges() [v2,11/25] PCI: rockchip: Drop storing driver private outbound resource data [v2,12/25] PCI: v3-semi: Use pci_parse_request_of_pci_ranges() [v2,13/25] PCI: xgene: Use pci_parse_request_of_pci_ranges() [v2,14/25] PCI: xilinx: Use pci_parse_request_of_pci_ranges() [v2,15/25] PCI: xilinx-nwl: Use pci_parse_request_of_pci_ranges() [v2,16/25] PCI: versatile: Use pci_parse_request_of_pci_ranges() [v2,17/25] PCI: versatile: Remove usage of PHYS_OFFSET [v2,18/25] PCI: versatile: Enable COMPILE_TEST [v2,19/25] PCI: of: Add inbound resource parsing to helpers [v2,20/25] PCI: ftpci100: Use inbound resources for setup [v2,21/25] PCI: v3-semi: Use inbound resources for setup [v2,22/25] PCI: xgene: Use inbound resources for setup [v2,23/25] PCI: iproc: Use inbound resources for setup [v2,24/25] PCI: rcar: Use inbound resources for setup [v2,25/25] PCI: Make devm_of_pci_get_host_bridge_resources() static

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index aeec8b65eb97..f7b1d80c4a0a 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -342,7 +342,8 @@ int dw_pcie_host_init(struct pcie_port *pp) if (!bridge) return -ENOMEM; - ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL); + ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bridge->dma_ranges, NULL); if (ret) return ret; diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index 9cbeba507f0c..b34eaa2cd762 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -939,7 +939,7 @@ static int advk_pcie_probe(struct platform_device *pdev) } ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, - &bus); + &bridge->dma_ranges, &bus); if (ret) { dev_err(dev, "Failed to parse resources\n"); return ret; diff --git a/drivers/pci/controller/pci-ftpci100.c b/drivers/pci/controller/pci-ftpci100.c index 12bc7daef5b5..5824913e311b 100644 --- a/drivers/pci/controller/pci-ftpci100.c +++ b/drivers/pci/controller/pci-ftpci100.c @@ -477,7 +477,8 @@ static int faraday_pci_probe(struct platform_device *pdev) if (IS_ERR(p->base)) return PTR_ERR(p->base); - ret = pci_parse_request_of_pci_ranges(dev, &host->windows, NULL); + ret = pci_parse_request_of_pci_ranges(dev, &host->windows, + &host->dma_ranges, NULL); if (ret) return ret; diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c index c8cb9c5188a4..250a3fc80ec6 100644 --- a/drivers/pci/controller/pci-host-common.c +++ b/drivers/pci/controller/pci-host-common.c @@ -27,7 +27,7 @@ static struct pci_config_window *gen_pci_init(struct device *dev, struct pci_config_window *cfg; /* Parse our PCI ranges and request their resources */ - err = pci_parse_request_of_pci_ranges(dev, resources, &bus_range); + err = pci_parse_request_of_pci_ranges(dev, resources, NULL, &bus_range); if (err) return ERR_PTR(err); diff --git a/drivers/pci/controller/pci-v3-semi.c b/drivers/pci/controller/pci-v3-semi.c index 96677520f6c1..2209c7671115 100644 --- a/drivers/pci/controller/pci-v3-semi.c +++ b/drivers/pci/controller/pci-v3-semi.c @@ -776,7 +776,8 @@ static int v3_pci_probe(struct platform_device *pdev) if (IS_ERR(v3->config_base)) return PTR_ERR(v3->config_base); - ret = pci_parse_request_of_pci_ranges(dev, &host->windows, NULL); + ret = pci_parse_request_of_pci_ranges(dev, &host->windows, + &host->dma_ranges, NULL); if (ret) return ret; diff --git a/drivers/pci/controller/pci-versatile.c b/drivers/pci/controller/pci-versatile.c index eae1b859990b..8f81d2c9296a 100644 --- a/drivers/pci/controller/pci-versatile.c +++ b/drivers/pci/controller/pci-versatile.c @@ -92,7 +92,7 @@ static int versatile_pci_probe(struct platform_device *pdev) if (IS_ERR(versatile_cfg_base[1])) return PTR_ERR(versatile_cfg_base[1]); - ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL); + ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL, NULL); if (ret) return ret; diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c index 7d0f0395a479..9408269d943d 100644 --- a/drivers/pci/controller/pci-xgene.c +++ b/drivers/pci/controller/pci-xgene.c @@ -627,7 +627,8 @@ static int xgene_pcie_probe(struct platform_device *pdev) if (ret) return ret; - ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL); + ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bridge->dma_ranges, NULL); if (ret) return ret; diff --git a/drivers/pci/controller/pcie-altera.c b/drivers/pci/controller/pcie-altera.c index ba025efeae28..b447c3e4abad 100644 --- a/drivers/pci/controller/pcie-altera.c +++ b/drivers/pci/controller/pcie-altera.c @@ -800,7 +800,7 @@ static int altera_pcie_probe(struct platform_device *pdev) } ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, - NULL); + &bridge->dma_ranges, NULL); if (ret) { dev_err(dev, "Failed add resources\n"); return ret; diff --git a/drivers/pci/controller/pcie-cadence-host.c b/drivers/pci/controller/pcie-cadence-host.c index 97e251090b4f..a8f7a6284c3e 100644 --- a/drivers/pci/controller/pcie-cadence-host.c +++ b/drivers/pci/controller/pcie-cadence-host.c @@ -211,7 +211,7 @@ static int cdns_pcie_host_init(struct device *dev, int err; /* Parse our PCI ranges and request their resources */ - err = pci_parse_request_of_pci_ranges(dev, resources, &bus_range); + err = pci_parse_request_of_pci_ranges(dev, resources, NULL, &bus_range); if (err) return err; diff --git a/drivers/pci/controller/pcie-iproc-platform.c b/drivers/pci/controller/pcie-iproc-platform.c index 375d815f7301..ff0a81a632a1 100644 --- a/drivers/pci/controller/pcie-iproc-platform.c +++ b/drivers/pci/controller/pcie-iproc-platform.c @@ -95,7 +95,8 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev) if (IS_ERR(pcie->phy)) return PTR_ERR(pcie->phy); - ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL); + ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bridge->dma_ranges, NULL); if (ret) { dev_err(dev, "unable to get PCI host bridge resources\n"); return ret; diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index df19beb2b2f1..d334925f19fd 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -1034,7 +1034,7 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie) int err; err = pci_parse_request_of_pci_ranges(dev, windows, - &bus); + &host->dma_ranges, &bus); if (err) return err; diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index 4eab8624ce4d..257ba49c177c 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -875,7 +875,8 @@ static int mobiveil_pcie_probe(struct platform_device *pdev) } /* parse the host bridge base addresses from the device tree file */ - ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL); + ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bridge->dma_ranges, NULL); if (ret) { dev_err(dev, "Getting bridge resources failed\n"); return ret; diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c index f6a669a9af41..b8d6e86a5539 100644 --- a/drivers/pci/controller/pcie-rcar.c +++ b/drivers/pci/controller/pcie-rcar.c @@ -1138,7 +1138,8 @@ static int rcar_pcie_probe(struct platform_device *pdev) pcie->dev = dev; platform_set_drvdata(pdev, pcie); - err = pci_parse_request_of_pci_ranges(dev, &pcie->resources, NULL); + err = pci_parse_request_of_pci_ranges(dev, &pcie->resources, + &bridge->dma_ranges, NULL); if (err) goto err_free_bridge; diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c index 2255ff53e2fb..b538b9ad8917 100644 --- a/drivers/pci/controller/pcie-rockchip-host.c +++ b/drivers/pci/controller/pcie-rockchip-host.c @@ -1004,7 +1004,8 @@ static int rockchip_pcie_probe(struct platform_device *pdev) if (err < 0) goto err_deinit_port; - err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, &bus_res); + err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bridge->dma_ranges, &bus_res); if (err) goto err_remove_irq_domain; diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c index e135a4b60489..9bd1427f2fd6 100644 --- a/drivers/pci/controller/pcie-xilinx-nwl.c +++ b/drivers/pci/controller/pcie-xilinx-nwl.c @@ -843,7 +843,8 @@ static int nwl_pcie_probe(struct platform_device *pdev) return err; } - err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL); + err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bridge->dma_ranges, NULL); if (err) { dev_err(dev, "Getting bridge resources failed\n"); return err; diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c index 257702288787..98e55297815b 100644 --- a/drivers/pci/controller/pcie-xilinx.c +++ b/drivers/pci/controller/pcie-xilinx.c @@ -645,7 +645,8 @@ static int xilinx_pcie_probe(struct platform_device *pdev) return err; } - err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL); + err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bridge->dma_ranges, NULL); if (err) { dev_err(dev, "Getting bridge resources failed\n"); return err; diff --git a/drivers/pci/of.c b/drivers/pci/of.c index f3da49a31db4..0b1e4623dfcf 100644 --- a/drivers/pci/of.c +++ b/drivers/pci/of.c @@ -257,7 +257,9 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only); */ int devm_of_pci_get_host_bridge_resources(struct device *dev, unsigned char busno, unsigned char bus_max, - struct list_head *resources, resource_size_t *io_base) + struct list_head *resources, + struct list_head *ib_resources, + resource_size_t *io_base) { struct device_node *dev_node = dev->of_node; struct resource *res, tmp_res; @@ -340,6 +342,42 @@ int devm_of_pci_get_host_bridge_resources(struct device *dev, pci_add_resource_offset(resources, res, res->start - range.pci_addr); } + /* Check for dma-ranges property */ + if (!ib_resources) + return 0; + err = of_pci_dma_range_parser_init(&parser, dev_node); + if (err) + return 0; + + dev_dbg(dev, "Parsing dma-ranges property...\n"); + for_each_of_pci_range(&parser, &range) { + /* + * If we failed translation or got a zero-sized region + * then skip this range + */ + if (((range.flags & IORESOURCE_TYPE_BITS) != IORESOURCE_MEM) || + range.cpu_addr == OF_BAD_ADDR || range.size == 0) + continue; + + dev_info(dev, "IB MEM %#010llx..%#010llx -> %#010llx\n", + range.cpu_addr, + range.cpu_addr + range.size - 1, range.pci_addr); + + + err = of_pci_range_to_resource(&range, dev_node, &tmp_res); + if (err) + continue; + + res = devm_kmemdup(dev, &tmp_res, sizeof(tmp_res), GFP_KERNEL); + if (!res) { + err = -ENOMEM; + goto failed; + } + + pci_add_resource_offset(ib_resources, res, + res->start - range.pci_addr); + } + return 0; failed: @@ -482,6 +520,7 @@ EXPORT_SYMBOL_GPL(of_irq_parse_and_map_pci); int pci_parse_request_of_pci_ranges(struct device *dev, struct list_head *resources, + struct list_head *ib_resources, struct resource **bus_range) { int err, res_valid = 0; @@ -489,8 +528,10 @@ int pci_parse_request_of_pci_ranges(struct device *dev, struct resource_entry *win, *tmp; INIT_LIST_HEAD(resources); + if (ib_resources) + INIT_LIST_HEAD(ib_resources); err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, resources, - &iobase); + ib_resources, &iobase); if (err) return err; diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 3f6947ee3324..6692c4fe4290 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -633,11 +633,15 @@ static inline void pci_release_bus_of_node(struct pci_bus *bus) { } #if defined(CONFIG_OF_ADDRESS) int devm_of_pci_get_host_bridge_resources(struct device *dev, unsigned char busno, unsigned char bus_max, - struct list_head *resources, resource_size_t *io_base); + struct list_head *resources, + struct list_head *ib_resources, + resource_size_t *io_base); #else static inline int devm_of_pci_get_host_bridge_resources(struct device *dev, unsigned char busno, unsigned char bus_max, - struct list_head *resources, resource_size_t *io_base) + struct list_head *resources, + struct list_head *ib_resources, + resource_size_t *io_base) { return -EINVAL; } diff --git a/include/linux/pci.h b/include/linux/pci.h index f9088c89a534..df6bafc54080 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2278,6 +2278,7 @@ struct irq_domain; struct irq_domain *pci_host_bridge_of_msi_domain(struct pci_bus *bus); int pci_parse_request_of_pci_ranges(struct device *dev, struct list_head *resources, + struct list_head *ib_resources, struct resource **bus_range); /* Arch may override this (weak) */ @@ -2288,6 +2289,7 @@ static inline struct irq_domain * pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; } static inline int pci_parse_request_of_pci_ranges(struct device *dev, struct list_head *resources, + struct list_head *ib_resources, struct resource **bus_range) { return -EINVAL;

[v2,19/25] PCI: of: Add inbound resource parsing to helpers

Commit Message

Patch